**The GM IFS 9.25″ axle is built by American Axle & Manufacturing (AAM). There is also a solid axle (front and rear) version of the 9.25″. This video is specifically for the IFS axle.
There are various specs listed all over the web for the 9.25″ IFS. The choice is yours to choose whichever you’d like to use.**
The GM IFS (Independent Front Suspension) axle is a strange chunk of mechanical wonder. It’s an aluminum case, split nearly down the center-lengthwise, that contains the innards of a typical live axle. When taken apart, the carrier just kinda plops out and the pinion stays inside. It just seems weird to call it an axle…it’s more like a confused easter egg.
At any rate, if you’re rebuilding or re-gearing a GM 9.25″ IFS axle this video may be of use to you. The process is very much the same for the GM 8.25 IFS; however, the specs may differ.
This video format assumes the viewer already has some general knowledge of what it takes to install a set of gears in an axle.
Specs:
*Ring Gear Torque – 75 ft lbs
*Clam Shell Bolts – 35 ft lbs
*Pinion Bearing Preload –
15 – 22 in lbs with new bearings
7 – 9 in lbs with used bearings
*Backlash – .006″ – .010″ (.012″-.020″ on the gauge)
For break-in procedures, check out this video from Yukon Gear and Axle.
https://youtu.be/LeEttxH29sQ
You can also follow the install manual provided by Yukon Gear and Axle.
https://www.yukongear.com/downloads/manuals/yukon_general_installation_instructions.pdf
More information can be found on Crawlpedia.
https://www.crawlpedia.com/ring_pinion_setup.htm
Let us know if this video actually helped, or if it was the worst possible how-to video you have EVER watched.
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Is this the same process in a hummer H2
How much would you charge me if I dropped off a 9.25 ifs diff and you helped me rebuild it?
Where is your shop located
You answered the pinion preload questions I had, thank you
10:00 that’s what she said
Bearing races….. I changed bearings in my S10 once (2005). I greased the bearings perfectly. After hours of driving (3?) the bearings seized and blew. I just now (2021) realized it was because I didnt change out the races. I’ve considered the various facts of this story many times, but never have I considered the fact that failing to replace the races was a factor.
Thanks for the great video. I pulled out my AAM IFS 9.25 Front Differential from my 2002 Chevy Silverado 3500 LT LB7 and wanted to know how you removed the Axle Bearing adjuster. It was in and all of a sudden removed. Is there a special tool or did you use a drift to spin it out?
Will a 4 locker work in those front axle
Dumb question… Can you weld a GM 8.25 IFS front diff? Not one that's full time AWD. So it will be a locked front end once you shift into 4×4? Is this a dumb idea?
THANK YOU for posting this!!! I had no idea how to take that driver’s side CV flange off. You saved me from (stupidly) tearing the diff down to get to it!!
Nice job, this will be helpful to me.
Awesome video!! Do you happen to know if they have any LSD or posi gears for those front diffs? Either the 9.25 or 8.25. I have an 08 Escalade and have been wanting to upgrade with bigger CV axles and LSD but have a hard time finding anything thanks for any info?!
Did pinion depth change ? Did you just shim it the same as the old one? How is it checked on this unit?
You should put a Cummins in the tow pig